I've heard of people making tea and root beer from sassafras, and I've heard it causes cancer. Here are some sites that say various things:
http://www.wildmanstevebrill.com/Pla...Sassafras.html - says HUGE doses cause cancer in rats, not humans.
http://www.familymedicinenews.org/ar.../2247(FM).html - "Animals given high doses of safrole developed difficulty walking, signs of nervousness and confusion, and difficulty with body temperature regulation. Long-term exposure produced liver tumors, including liver cancer. Because of these health risks, the Food and Drug Administration has banned safrole-containing food additives. Sassafras tea, because of its so-called "natural" status, is still available." (Notice they talk about effects in animals, not humans.)
http://www.bccancer.bc.ca/PPI/Unconv...ssafrasTea.htm - good link because it has quotes from medical studies, not hearsay.
http://www.drugs.com/npp/sassafras.html - more info of a medical nature.
http://www.google.com/search?source=...=Google+Search
The google search I used.
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